Hi
I am not sure why this happens but you can try to deactivate all plugins except Visual Composer, clear all caches and test again.
Let us know how it goes and if the problem persist please send us an email at contact@tagdiv.com with your login credentials and we will inspect this issue as soon as possible, also include a link to this topic.
Thanks!
Lso i used in .htacces Chris code
# END WordPress
AddType text/javascript .js
AddType application/vnd.ms-fontobject .eot
AddType application/x-font-ttf .ttf
AddType application/x-font-opentype .otf
AddType application/x-font-woff .woff
# BEGIN Expire headers
<IfModule mod_expires.c>
ExpiresActive On
ExpiresDefault "access plus 5 seconds"
ExpiresByType image/x-icon "access plus 2500000 seconds"
ExpiresByType image/jpeg "access plus 2500000 seconds"
ExpiresByType image/png "access plus 2500000 seconds"
ExpiresByType image/gif "access plus 2500000 seconds"
ExpiresByType application/x-shockwave-flash "access plus 2500000 seconds"
ExpiresByType text/css "access plus 700000 seconds"
ExpiresByType text/javascript "access plus 700000 seconds"
ExpiresByType application/javascript "access plus 700000 seconds"
ExpiresByType application/x-javascript "access plus 700000 seconds"
ExpiresByType text/html "access plus 600 seconds"
ExpiresByType application/xhtml+xml "access plus 600 seconds"
ExpiresByType font/truetype "access plus 2500000 seconds"
ExpiresByType font/opentype "access plus 2500000 seconds"
ExpiresByType application/x-font-woff "access plus 2500000 seconds"
ExpiresByType image/svg+xml "access plus 2500000 seconds"
ExpiresByType application/vnd.ms-fontobject "access plus 2500000 seconds"
</IfModule>
# END Expire headers
# BEGIN Cache-Control Headers
<IfModule mod_headers.c>
<filesMatch "\.(ico|jpe?g|png|gif|swf)$">
Header set Cache-Control "public"
</filesMatch>
<filesMatch "\.(css)$">
Header set Cache-Control "public"
</filesMatch>
<filesMatch "\.(js)$">
Header set Cache-Control "private"
</filesMatch>
<filesMatch "\.(x?html?|php)$">
Header set Cache-Control "private, must-revalidate"
</filesMatch>
</IfModule>
# END Cache-Control Headers
<IfModule mod_headers.c>
Header unset ETag
</IfModule>
<IfModule mod_alias.c>
RedirectMatch 403 /xmlrpc.php
</IfModule>